THIS IS ACTUALLY ASTRONOMY Rigil kent is a main sequence star (G2). It's temperature is measured to be able 5,800 K. If the apparent magnitude is +1.33, then how far is it from Earth?

(Hint: use the Hertzsprung-Russell diagram to find the absolute magnitude of a star with such characteristics)​

In german cockroaches, curved wing (cv) is recessive to normal wing (cv+). bill, who is raising cockroaches in his dorm room, finds that the frequency of the gene for curved wings in his cockroach population is 0.6. in his friend joe’s apartment, the frequency of the gene for curved wings is 0.2. one day joe visits bill in his dorm room, and several cockroaches jump out of joe’s hair and join the population in bill’s room. bill estimates that, now, 10% of the cockroaches in his dorm room are individual roaches that jumped out of joe’s hair. what is the new frequency of curved wings among cockroaches in bill’s room? 0.69 0.4 0.5 0.31 0.20

How do antiviral drugs work? in your own words.

In general, characteristics that an organism survive and reproduce become more common in a population over time. what mechanism of evolution cause this change?